An aerial creature that builds its nest within slow moving fresh water areas such as rivers, lakes, and deltas. They are known for their aggressiveness when approached by intruders, and will charge seemingly without any regard for their own safety.

As with all bio-engineered creatures, the Shams feature an extremely hard exoskeleton that protects them from harsh environments, as well as most conventional weapons. It is thought that each individual Sham is incapable of independent thought, but as a group, they are able to work almost as extensions of a single unit.